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-   -   New 540 with crossover hotter on starbord side (https://www.offshoreonly.com/forums/general-q/254712-new-540-crossover-hotter-starbord-side.html)

Troubled 26 06-09-2011 09:08 AM

Rivertown. On my trailer in building A. Won't let them rack it!

Troubled 26 06-09-2011 09:26 AM

Rivertown. On my trailer in building A. Won't let them rack it?

fbc25el 06-10-2011 09:33 AM

I usually put in at shmidt field when i go to the river. I also have just put a crossover on mine. With the circ. pump the temps.stayed at 140. I shure hope I dident screw up!

Advantage 575 06-10-2011 04:22 PM

On the crossover, did you feed the water hose from the pump to the center of the crossover or on either end?

Boat1 06-11-2011 08:36 PM

When you install a crossover system you should also install a water pressure guage on the block. Your engine water pressure should not exceed 25 psi at WOT, this can be controlled by the bypass size and exhaust outlet size. I suggest you inspect the inlet side of the oil cooler and look for old impeller parts or debris. I just had a nightmare engine that one header would overheat at WOT, the engine always showed proper temp, the other header was cool to touch. After replacing everything in the system I pulled the oil cooler and could not believe how much junk was in the inlet side of that cooler and the engine still held temp. We backflushed it many times, the debris never showed but was there. I checked it with a mirror to find the debris. Good Luck.

Troubled 26 06-19-2011 06:23 PM

Crossover gone, all problems gone!!! All temps are perfect on gauges, and with infarred, at manifolds, block, etc. NOTE TO ALL -DO NOT EVER INSTALL ONE OF THESE UNITS ON YOUR ENGINE! I don't care if you drill one hole or six holes in the stat. Run a 165 stat or no stat. Run a unit with a by-pass or no by-pass. Have a clogged cooler of no cooler at all. Feed from the right, feed from the left, run on a hose or in the water. THEY ARE TROUBLE! Anyone want to buy one slightly used cheap? What a freekin nightmare!

ezstriper 06-19-2011 08:12 PM

like I said ran one for 5 years...no issues

jeffswav 06-19-2011 09:02 PM

Well, I have run one for years, you never posted a pic so we cannot even see how you had it plumbed. Glad you have it fixed, but don't condem a system that works.

Troubled 26 06-20-2011 07:09 AM

Glad they work for you but I have heard just as may horrer stories also. Thus the condemnation. It is like anything else, not everything works the same in every application.


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